swift - FirebaseUI 不显示任何输入字段或按钮

Question

我想在我的项目中实现 FirebaseUI，但登录页面未显示任何输入字段或按钮:

显示FUIAuth的代码:

@IBAction func logInButtonTapped(_ sender: Any) {

        let authUI = FUIAuth.defaultAuthUI()

        guard authUI != nil else {
            //Log error

            return
        }

        authUI?.delegate = self
        authUI?.providers = [FUIEmailAuth]()

        let authViewController = authUI!.authViewController()

        present(authViewController, animated: true, completion: nil)

    }

}

extension LogInViewController: FUIAuthDelegate {

    func authUI(_ authUI: FUIAuth, didSignInWith authDataResult: AuthDataResult?, error: Error?) {

        if error != nil {

            return
        }

        performSegue(withIdentifier: "ToHomeVCSegue", sender: self)
    }
 }    

我在 podfile 中尝试了很多不同的选项:

pod 'Firebase/Core'
pod 'Firebase/Auth'
pod 'Firebase/Database'
pod 'FirebaseUI'
pod 'FirebaseUI/Email' 

Answer 1

我刚刚遇到了同样的问题，似乎所有示例都缺少使提供程序出现所需的步骤的某些方面。第一个答案是正确的，但没有举例。在下面的代码中，我只是起诉电子邮件和 Google 身份验证。此代码嵌入在登录按钮按下事件中。

let authUI = FUIAuth.defaultAuthUI()
        
guard authUI != nil else {
    print("authUI error")
    return
}
authUI?.delegate = self
let providers: [FUIAuthProvider] = [
    FUIEmailAuth(),
    FUIGoogleAuth()
]
authUI?.providers = providers
let authViewController = authUI!.authViewController()
present(authViewController, animated: true)